Electric bicycle

ABSTRACT

An electric bicycle assembly provided with a lightweight, high performance DC electric motor and a tuned centrifugal slip clutch assembly in combination therewith. This bicycle assembly includes a two-stage start-run electric control circuitry which prevents high motor zero rpm in-rush currents which may damage the motor.  
     Another embodiment of this invention utilizes a variable ratio V-belt drive assembly having a centrifugal clutch capability so as to engage and disengage at a predetermined RPM.  
     Another embodiment of this invention is provided with a front wheel mounted regenerating wheel rotor assembly which is adapted to recharge batteries as needed.  
     Another embodiment of this invention utilizes a mechanically actuated multi-stage power control switch so as to selectively provide a start circuit and two or more power control levels in the operational use thereof.

1. This invention relates to an electric bicycle assembly which issimple in design configuration so as to achieve a cruising speed of25+mph and a range of 45+miles while remaining highly efficient and costeffective.

2. This invention relates to an electric bicycle assembly having alightweight, high performance DC electric motor and a tuned centrifugalslip clutch in combination therewith which results in a single stagegear reduction having improved efficiency over multi-stage gearreduction by reducing overall mechanical friction which wastes energy.

3. Still further, this invention relates to an electric bicycle assemblyhaving a tuned centrifugal slip clutch which is tuned to lock up atapproximately 50% of peak rpm so as to prevent the high efficiency motorfrom trying to start moving the bicycle at zero or low rpm with animmediate resultant high current drain of the battery.

4. This invention also relates to an electric bicycle assembly having atuned centrifugal slip clutch which prevents a dramatic lurch forward bythe bicycle when the start-run button is engaged.

5. Further, this invention relates to an electric bicycle assembly whichutilizes a lightweight high performance DC electric motor having an 80%or better efficiency so as to improve performance and achieve anextended range.

6. This invention further relates to an electric bicycle assembly havinga two-stage start run control circuitry which prevents high motor zerorpm in rush currents that can damage motor magnets and other components.The two-stage start run control circuitry prevents the high current ratedrainage of the batteries so as to increase the operating range andefficiency of the electric bicycle.

7. This invention also relates to an electric bicycle assembly havingembodiments which utilize three batteries to provide a 36-volt system asopposed to a lower voltage system. The higher voltage system permits theutilization of lighter motors, wiring and less expensive motor feedwiring and a higher voltage motor which provides the same horsepowerwhile having a higher efficiency and less weight than a lower voltagemotor.

8. This invention also relates to an electric bicycle assembly whichdoes not use energy wasting rheostats and voltage dropping resistorsand/or expensive solid state controllers to attempt to avoid a highcurrent zero rpm start-up problem which can result in high current ratebattery drain and also result in premature motor failure.

9. This invention also relates to an electric bicycle assembly whereinthe driving power is applied directly into a standard multi-speedbicycle rear hub so that a wide range of gears becomes available in asimple, lightweight efficient package.

10. Another embodiment of this invention relates to a hybrid electricbicycle assembly which utilizes a standard bicycle pedal rear wheeldrive which selectively coacts with a front wheel mounted electric motorand tuned centrifugal clutch drive assembly embodied in the presentinvention.

11. A still further embodiment of this invention relates to an electricbicycle assembly as described herein which is provided with anaerodynamic faring or an enclosed or semi-enclosed aerodynamic cab whichcan be covered with photovoltaic cells adapted to charge the batteriesso as to enhance the battery charge thereby increasing the range of thebicycle before a full battery charge is required.

12. Yet another embodiment of this invention relates to an electricbicycle assembly which is selectively provided with a solar paneladapted to charge the batteries thereby recharging the batteries withouta readily available electric source.

13. A still further embodiment of this invention relates to an electricbicycle assembly which is selectively provided with a battery chargerassembly which can be plugged into a 110 volt outlet so as to rechargethe batteries while the electric bicycle is not in use.

14. Another embodiment of this invention relates to a tricycle assemblywhich utilizes one or more of the foregoing embodiments in providing afront or rear wheel drive tricycle assembly.

15. Yet another embodiment of this invention relates to a four-wheelelectric vehicle which utilizes one or more of the foregoing embodimentsto provide a front or rear wheel drive assembly.

16. Another embodiment of this invention relates to an electric bicycleassembly which utilizes a variable ratio V-belt drive asembly having acentrifugal clutch capability so as to engage and disengage at apredetermined RPM.

17. Another embodiment of this invention relates to an electric bicycleassembly which utilizes a front wheel mounted regenerating wheel rotorassembly which is adapted to recharge the batteries as needed whilebraking when the electric bicycle is in motion.

18. Another embodiment of this invention relates to an electric bicycleassembly which utilizes a mechanically actuated multi-stage powercontrol switch so as to selectively provide a start circuit and two ormore power control levels in the operational use thereof.

19. None of the electric bicycle assemblies of the prior known art teachthe unique configuration of the present invention which utilizeselectric bicycle or tricycle assembly components as described herein toprovide improved speeds and extended range.

20. Other objects and advantages found in the construction of theinvention will be apparent from a consideration in connection with theappended claims and the accompanying drawings.

IN THE DRAWINGS

21.FIG. 1 is a schematic perspective view showing the right side of theelectric bicycle.

22.FIG. 2 is a schematic left side view of the electric bicycle.

23.FIG. 3 is a schematic front view of the electric bicycle.

24.FIG. 4 is a schematic top view of the electric bicycle.

25.FIG. 4A is a sectional view taken on line 4A-4A of FIG. 4 showing thecentrifugal slip clutch assembly.

26.FIG. 5 is a circuit diagram showing the two-stage start-run controlsystem, including an optional 110 volt battery charge and solar panelbattery charger.

27.FIG. 6 is a partial schematic sectional view of the electric motorand the centrifugal slip clutch assembly.

28.FIG. 7 is a sectional view taken on line 7-7 of FIG. 6.

29.FIG. 8 is a schematic right side perspective view of anotherembodiment of the electric bicycle which is a hybrid having a frontwheel electric drive and a standard bicycle multi-speed pedal reardrive.

30.FIG. 9 is a schematic left side view of the hybrid electric bicycleshown in FIG. 8.

31.FIG. 10 is a schematic front view of the hybrid electric bicycleshown in FIG. 8.

32.FIG. 11 is a schematic top view of the hybrid electric bicycle shownin FIG. 8.

33.FIG. 12 is a schematic partial right side view of the variable ratioV-belt drive assembly embodiment shown in its zero rpm position.

34.FIG. 12A is a schematic top view of the variable ratio V-belt driveassembly shown in FIG. 12.

35.FIG. 13 is a schematic partial right side view of the variable ratioV-belt drive assembly embodiment shown in its full rpm position.

36.FIG. 14 is a schematic partial cross-sectional view of the variableratio V-belt drive or assembly embodiment taken on line 14-14 of FIG.12.

37.FIG. 15 is a schematic partial cross-sectional view of the variableratio V-belt drive or assembly embodiment taken on line 15-15 of FIG.13.

38.FIG. 16 is a schematic partial cross-sectional view of the variableratio V-belt drive assembly embodiment taken on line 16-16 of FIG. 12.

39.FIG. 16A is a schematic partial cross-sectional view of the variableratio V-belt drive assembly taken on line 16A-16A of FIG. 16.

40.FIG. 16B is a schematic elevational view of the inside surface of theclutch cover for the variable ratio V-belt drive assembly as shown inFIGS. 12 and 13 and FIGS. 16 and 17.

41.FIG. 17 is a schematic partial cross-sectional view of the variableratio V-belt drive assembly embodiment taken on line 17-17 of FIG. 13.

42.FIG. 17A is a schematic partial cross-sectional view of the variableratio V-belt drive assembly taken on line 17A-17A of FIG. 17.

43.FIG. 18 is a schematic side view of another embodiment of theelectric bicycle showing the use of three 12-volt batteries.

44.FIG. 19 is a schematic side view of yet another embodiment of thehybrid electric bicycle showing the use of the three 12-volt batteries.

45.FIG. 20 is a schematic side view of yet another embodiment of theelectric bicycle showing the use of a regenerating wheel assembly havinga rotor with permanent magnets coacting with brake caliper mountedgenerating coils.

46.FIG. 21 is a schematic front view of the regenerating wheel assemblyshown in FIG. 20.

47.FIG. 22 is a schematic partial sectional view taken on line 22-22 ofFIG. 20.

48.FIG. 23 is a circuit diagram of the three battery embodiment of theelectric bicycle provided with a 110 volt battery charger, regeneratingwheel assembly and solar charger panels.

49.FIG. 24 is a schematic side view of the aerodynamic fairing assemblywhich is selectively positioned on the front wheel and steering assemblyof the electric bicycle.

50.FIG. 25 is a schematic front view of the aerodynamic fairing assemblyshown in FIG. 24.

51.FIG. 26 is a schematic top view of the aerodynamic fairing assemblyshown in FIG. 24.

52.FIG. 27 is a schematic front view of the electric bicycle with theaerodynamic fairing assembly mounted thereon.

53.FIG. 28 is a partial schematic side view of the electric bicycle withthe aerodynamic fairing assembly mounted thereon.

54.FIG. 29 is a partial schematic top view of the electric bicycle withthe aerodynamic fairing assemlby mounted thereon.

55.FIG. 30 is a partial schematic side view of the electric bicyclesteering assembly with the aerodynamic fairing assembly attachedthereto.

56.FIG. 31 is a partial schematic sectional view taken on line 31-31 ofFIG. 27.

57.FIG. 32 is a partial schematic view showing an alternate structurefor attaching the flexible plastic aerodynamic sheet to the supportmember of the aerodynamic fairing assembly.

58.FIG. 33 is a schematic circuit diagram showing a mechanicallyactuated multi-stage power control switch utilized in another embodimentof the electric bicycle invention.

DESCRIPTION

59. An embodiment of the electric bicycle 20 is shown in the right sideschematic perspective view of FIG. 1. The electric bicycle 20 iscomprised of frame 21 having a front wheel 22 mounted in a fork assembly23 which is stearable by a handle bar assembly 24.

60. A rear wheel 25 is mounted at the rear of the frame 21 and isprovided with a drive sprocket 26 operatively connected to themulti-speed drive hub 27 of the rear wheel 25.

61. The drive sprocket 26 is driven by a drive chain 28 which is inoperative engagement with a high performance DC electric motor 29 incombination with a selectively tuned centrifugal slip clutch assembly30. The overall operation of the DC electric motor 29 and theselectively tuned centrifugal clutch 30 will be dis- cussed hereafter ingreater detail as shown in FIGS. 4, 4A, 6 and 7.

62. A battery support cage 31 is suspended from the frame 21 so as tosupport the batteries 32 and 33 respectively which selectively power theDC motor 29. As will be hereinafter discussed, other embodiments of theelectric bicycle invention utilize three batteries so as to achievegreater range and versatility. It is within the scope of this inventionto utilize a single battery to power the DC motor 29.

63. It should also be noted that a ½hp electric bicycle with two 33 amphour gel cell lead acid batteries will store approximately 900 watts ofelectrical power which costs approximately 7 cents at 8 cents per KWH.The 7 cents of power will propel the bike 35+ miles at 21 mph. One cent(1¢) of electricity will power the bicycle for 5+miles on average. Eachmile will consume 23 watts of electricity at 21 mph.

64. Further, the ¾hp bicycle with three 33 amp hour gel cell lead acidbatteries will store aproximately 1300+watts of electrical power whichcosts approximately 11 cents at 8 cents per KWH and will propel the bike45+miles at 25+mph. One cent of electrical power will propel the bicycleapproximately 4½+ miles. On average, each mile consumes 27 watts ofelectrical power per mile at 25+mph.

65. By use of an aerodynamic fairing, an advantage of +4 watts per mileis achieved.

66. As further shown in FIGS. 1 through 4, the electric bicycle 20 isprovided with a front wheel hand brake assembly 34 in selectiveoperating engagement with the front wheel rim 35. The front wheel handbrake assembly 34 is selectively actuated by the hand brake lever 36provided on the handle bar 24. The front wheel hand brake lever 36 isconnected to the front wheel hand brake assembly 34 by actuating cable37 which is only partially shown.

67. A rear brake assembly 38 is provided in selective operatingengagement with the rear wheel rim 25 a. The rear brake assembly 38 isselectively actuated by the rear wheel brake lever 39 acting through theactuating cable 39 a.

68. Although the present invention utilizes traditional hand actuatedmechanical brake systems which act upon the wheel rims, it is within thescope of this invention to utilize any type of motorcycle, moped orbicycle braking systems that are well known in the prior art. Further,while the braking system used in the instant invention includes a handbrake lever mechanical cable operated brake system, it is also withinthe scope of this invention to utilize hand or foot actuated hydraulic,mechani or electrical powered braking systems in connection therewithwhich are well known in the prior art.

69. A multi-speed shift lever 40 is also provided on the handle bar 24which selectively acts through cable 41 to selectively actuate the rearwheel multi-speed drive hub 27.

70. An adjustable seat 42 is also provided on the frame 21 of theelectric bicycle 20. Further, handle grips 43 and foot rests 44 areprovided on the electric bicycle 20.

71. An electrical control box 45 is provided on electric bicycle 20 on asupport bar 31 a directly above the batteries 32 and 33.

72. As shown schematically in FIG. 2 and in the circuit diagram of FIG.5, a two-stage start-run control system is provided to selectivelyactuate the DC motor 29 to achieve optimum operating efficiency byavoiding excessive battery drain and also to prevent premature motorfailure due to excessive wear or stress on the motor.

73. The electrical components contained in the control box 45 and shownin the circuit diagram consist of an inductive coil 46, a time delayrelay 47, a first solenoid 48 and a second solenoid 49. However, itshould be noted that the two-stage start-run control system couldoperate satisfactorily without the use of the inductive coil 46 in someapplications, but it could be used as an option to further limit theinitial current spike at the first stage.

74. In addition, as shown in FIG. 5, an optional battery charger 50having a 110 volt connector cable 50 a and an optional solar panelcharger 51 can be provided as desired.

75. As further shown in FIG. 5, the unique two-stage start-run controlcircuitry embodied in this invention prevents high motor zero rpm inrush currents that can damage motor magnets and other wiring components.

76. The two-stage start-run control circuitry also prevents theimmediate start-up high current drainage of the batteries whichdramatically reduces operating range and efficiency.

77. The stage one start control begins the moment the start-run button52 on the handle bar is depressed. When the start-run button isdepressed, the time delay relay 47 is closed (energized) so as to closethe first solenoid 48 so as to deliver 24 volts to the 36 volt motor 29through a current limiting inductive coil 46. This further minimizes thezero rpm inrush current.

78. The stage one start-up automatically turns off via the time delayrelay 47 which disengages the first solenoid 48 at approximatelyone-half second after the start-run button 52 is depressed. This enablesthe motor time to start and run up under 24 volt lower currentconditions.

79. Thereafter, within 0.1 second after the first solenoid 48disengages, the second stage start-run control permits the secondsolenoid 49 to engage so as to supply the full 36 volts to the motor 29which has been pre-reved by the first stage, thus preventing anyexcessive energy loss or damage to the motor 29.

80. The foregoing discussion relates to the use of three 12-voltbatteries. When only two 12-volt batteries are used, the first solenoid48 is actuated to deliver only 12 volts to the motor through the currentlimiting inductive coil 46. The second stage then delivers the full 24volts to the motor.

81. As shown more specifically in FIGS. 4A, 6 and 7, the highperformance DC electric motor 29 is operatively connected to theselectively tuned centrifugal slip clutch assembly 30 which acts tocontrol the motor load so as to prevent low rpm excessive high motorcurrents that can damage the DC motor 29 and rapidly discharge thebatteries causing a poor efficiency result.

82. The standard practice in the prior art devices is to provide rpmcontrol on DC motors by using voltage dropping resistors, rheostats orvariable frequency controllers. Such devices are heavy, inefficient ortoo expensive for use in connection with electric bicycles.

83. Heretofor, it has not been obvious to anyone skilled in the electricbicycle prior art to use an inexpensive and efficient tuned centrifugalclutch to manage the DC electric motor rpm, current and power output.

84. As shown in FIGS. 4A, 6 and 7, the motor drive shaft 29 a isprovided with a sleeve 29 b mounted thereon. The sleeve 29 b isrotatable with the motor drive shaft 29 a by virtue of a key member 29c. The sleeve 29 b is retained in its position by use of a nut 29 d anda washer 29 e.

85. The outer clutch shell housing 30 a is concentrically freely mountedon the sleeve 29 b and is not rotatable therewith when the motor 29 isaccuated at the outset. The outer clutch shell housing 30 a is in fixedoperative engagement with the drive chain assembly 28 so as toselectively drive the wheel connected thereto.

86. The outer clutch shell housing 30 a is restricted from lateralmovement along the sleeve 29 b by use of a lock ring 30 b mounted on thesleeve 29 b adjacent to the outer clutch shell housing 30 a.

87. An internal circular housing assembly 53 is comprised of an angularcircular member 53 b which is concentric to the outer clutch shell 30 a.The angular circular member 53 b is fixedly attached along itshorizontal surface 53 c to the outer surface of sleeve 29 b so as to berotatable therewith.

88. A circular member 53 d is provided in mating free engagement withthe angular circular member 53 b so as to define a U-shaped portion 53e. The circular member 53 d is maintained in its mating engagement withthe angular circular member 53 b by use of a lock ring 53 f.

89. Thus positioned, the internal circular housing assembly 53 can beselectively removed for adjustment purposes as will hereinafter bedescribed.

90. The U-shaped portion 53 e of the internal circular housing assembly53 is adapted to freely receive a plurality of curved weights 53 g asshown in FIGS. 6 and 7. The weights 53 g are freely separated by weightretainer members 53 h. The weights 53 g are provided with springretainer slots 53 i.

91. As more specifically shown in the cross-sectional view of FIG. 7, atension spring 53 j is provided in the spring retainer slots 53 i so asto retain the weights 53 g in their rest position within the U-shapedportion 53 e away from the inner surface of the outer clutch shellhousing 30 a. The tension spring 53 j can be selectively “tuned” byvarying the tension of the spring 53 j as desired.

92. At rest, the co-acting weights 53 g, the weight retainers 53 h andthe tension spring 53 j are positioned away from the internal surface ofthe clutch shell housing 30 a. This angular circular member 53 b isfixedly mounted on the sleeve 29 b which is keyed to the motor shaft 29a and is adapted to start to spin when the motor 29 is actuated by thestart-run button 52.

93. The spinning action exerts a centrifugal force upon the spinningweights 53 g. As the centrifugal force overcomes the tuned tension ofthe tension spring 53 j, the weights 53 g begin to move outwardly so asto operationally engage the internal surface of the clutch shell 30 a.This locking engagement occurs at approximately 7 mph in first gear soas to create a direct drive between the motor 29 and the drive chain 28.

94. When the start-run button 52 is released, the motor slows down andstops. The centrifugal force stops and the weights 53 g disengage fromthe outer clutch shell 53 under the effect of the tuned spring 53 j sothat the motor 29 is no longer driving the bicycle. The bicycle 20 thenbegins to freely coast in the usual manner.

95. In the preferred embodiment, the tuned centrifugal slip clutchassembly 30 must be tuned to lockup at approximately 50 percent of peakrpm. This will prevent the high efficiency motor from trying to startmoving the electric bicycle at low rpm which would cause the normalcurrent load of 18 amps at 1800 rpm to reach destructively high currentvalues during acceleration from 0 to approximately 7 mph. This situationof very high current load would rapidly drain a battery. This is one ofthe key obstacles that must be overcome in the design of an efficientelectric bicycle.

96. As previously stated, those who are skilled in the prior art ofelectric bicycles have heretofore used energy wasting rheostats orvoltage dropping resistors with resultant low operating range. It shouldbe noted that the high current start up problem may cause prematuremotor failure as well as unsafe operation of the electric bicycle. Theuse of the centrifugal clutch 30 also prevents the dramatic lurchforward when the start-run button is engaged.

97. It should be noted that other types of clutches can be used so longas they have the capability of controlling the motor load so as toprevent low rpm excessive high motor currents that can damage the motorand rapidly discharge the batteries, thereby causing a poor efficiencyresult.

98. As shown in FIGS. 8 through 11, another embodiment of this inventionis shown which is a hybrid electric-pedal bicycle 54 which utilizes anelectric front wheel drive assembly 55 and a standard foot pedal rearwheel drive assembly 56.

99. The front wheel drive assembly 55 is powered by an 80% plusefficiency electric motor 57 which is operably connected to a tunedcentrifugal clutch assembly 30 as previously described herein. A frontwheel multi-gear transmission assembly 58 is provided in the hub of thefront wheel 22. The front wheel multi-gear assembly 58 is selectivelyactuated by a front wheel gear shift lever 59 provided on the handle bar24. The gear shift lever 59 is operably connected to the multi-gearassembly 58 by cable 60 partially shown.

100. The foot pedal rear wheel drive assembly 56 is a standard manuallyoperated sprocket driven rear wheel so as to enable the operator tooperate the bicycle when desired. It is within the scope of theinvention to provide a battery charging capability when desired.

101. As shown in FIGS. 12 through 17, another embodiment of thisinvention utilizes a variable ratio V-belt drive assembly 61 having acentrifugal clutch capability so as to engage at a predetermined RPM.

102. The advantage of this variable ratio V-belt drive assembly is thatit manages itself (no shifting of gears). This drive assembly changesthe drive ratio (relationship of motor RPM to drive wheel RPM) as aresult of increase in motor RPM.

103. As shown in the right-side schematic view of the variable ratioV-belt drive assembly 61 shown in FIG. 12, the rear-driven pulleyassembly 62, the forward driving pulley assembly 63 and the V-belt 64 inoperative engagement therewith are positioned in their zero RPMstationary position.

104. As shown in the right side schematic view of FIG. 13, the reardriven pulley assembly 62, the forward driving pulley assembly 63 andthe V-belt 64 in operative engagement therewith are positioned in theirfull RPM position.

105. As shown in the schematic top view of FIG. 12A, the variable ratioV-belt-drive assembly 61 is shown in its operative use position with thedrive motor 65, the forward driving pulley assembly 63, and the reardriven wheel pulley assembly 62. The schematic top view of FIG. 12Ashows the zero RPM position as shown in FIG. 12.

106. As shown in the schematic cross-sectional view of FIG. 14 which istaken on line 14-14 of FIG. 12, the rear wheel driven pulley assembly 62is shown in its closed zero RPM position with the drive-belt 64 locatedat outer circumferential perimeter of the closed pulley assembly 62.

107. As shown in FIG. 15, the rear wheel driven pulley assembly 62 andrear wheel hub 67 are rotatably mounted on the fixed rear wheel supportaxle 68. The rear wheel driven pulley assembly 62 is supported on thefixed rear wheel axle 68 by roller bearings 69. The fixed rear wheelsupport axle 68 also supports the bicycle frame rear wheel engagingstruts 70.

108. Retainer jam nuts 71 are provided at each end of the rear wheelsupport axle 68.

109. The pulley assembly 62 is comprised of an inner pulley wall half 72which is fixedly attached by welding 73 to the rear wheel hub 67 so asto be selectively rotatable therewith so as to selectively drive therear wheel assembly 66 when the motor 65 is actuated.

110. The rear driven pulley assembly 62 has a movable outer pulley wallhalf 74 which is selectively movable toward and away from the innerpulley wall half 72 in response to selective movement of the V-belt 64.The movable pulley wall half 74 is slidably mounted on a plurality ofspring retainer bolts 75 which freely pass through openings 75 aprovided in the movable pulley wall half 74 so as to threadably engagethe inner pulley wall half 72 so as to be rotatable therewith. Thehexagonal head spring retainer bolts 75 are provided with tensionsprings 76 which act upon the back of the movable outer pulley wall half74 so as to move it to its normal closed rest position when the V-beltreturns to its zero RPM rest position as shown in FIG. 14.

111. As shown in FIG. 15, as the RPM of the V-belt 64 increases, theV-belt 64 is pulled inward so as to cause the outer movable pulley wallhalf 74 to move away from the stationary inner pulley wall 72 to itsfull RPM position thereby compressing the tension springs 76. It shouldbe noted that there are four equally spaced-apart spring retainer bolts75 provided on the movable outer pulley half 74 as shown in FIG. 12.However, it is considered to be within the scope of the invention thatany desired equally spaced-apart bolts 75 be utilized as required.

112. As shown in the schematic cross-sectional view of FIG. 16 taken online 16-16 of FIG. 12, the forward driving pulley 63 is shown in itsopen zero RPM position in operative use position on the motor shaft 65 aof the drive motor 65.

113. The inner driving pulley wall half 77 is fixedly attached to themotor shaft 65 a by a shaft key member 78 and retainer screws 79 so asto be rotatable therewith but not laterally movable with respectthereto.

114. As shown in FIG. 16, an outer driving pulley wall half 81 is keyedto the motor shaft 65 a so as to be rotatable therewith. In addition,the outer driving pulley wall half 81 is selectively laterally movabletoward and away from the fixed inner driving pulley wall half 77 inresponse to changes in RPM of the motor 65.

115. A clutch cover 80 is fixedly attached to the motor shaft 65 a byuse of retainer screws 79 and also by the shaft key member 78 so as tobe rotatable therewith but not laterally movable with respect thereto.The outer pulley half 81 is provided with a circumferential flange 81 awhich freely overlaps the outer perimeter of the clutch cover 80 whenthe outer pulley half 81 is in its 0 rpm position as shown in FIG. 16.

116. The lateral movement of the outer driving pulley wall half 81 iscontrolled by a system of cylindrical clutch weights 82 which aremovably retained within coacting weight slots 80 a and 81 b provided inthe inside surface of the clutch cover 80 and the outer surface of themovable driving pulley wall half 81, respectively. The coacting weightslots 80 a and 81 b are in spaced-apart register so as to define achannel 81 c within which the cylindrical weights 82 move outwardly inresponse to centrifugal force created by changes in RPM after the motor65 is started.

117. As shown in the partial schematic view of FIG. 16A taken on line16A-16A of FIG. 16, the cylindrical weights 82 are shown in their 0 rpmrest position within their respective slots 80 a and 81 b provided inthe clutch cover 80 and the movable pulley half 81, respectively.

118. As shown in the partial schematic view of FIG. 17A taken on line17A-17A of FIG. 17, the cylindrical weights 82 are shown in their fullrpm position within their respective slots 80 a and 81 b provided in theclutch cover 80 and the movable pulley 81, respectively.

119. The schematic rear elevational view of FIG. 16B shows thecylindrical weights 82 in their respective slots 80 a at their 0 rpmrest position.

120. As previously stated, the forward driving pulley 63 is shown in itsopen zero RPM operative use position in FIG. 16. In the open zero RPMposition shown in FIG. 16, the V-belt 64 is shown in the innermostposition in the open forward driving pulley 63 proximate to the motordrive shaft 65 a. The centrifugal clutch weights 82 remain at rest atthe innermost of their respective channels 80 a and 81 b proximate tothe motor drive shaft 65 a, as shown in FIG. 16.

121. After the motor 65 is started, the driving pulley assembly 63begins to rotate because it is rotatably attached to the motor shaft 65a. As the motor RPMs increase, the resultant centrifugal force causesthe centrifugal clutch weights 82 to move outwardly through channel 81 cdefined by their respective slots 80 a and 81 b, thus exerting forceupon the movable driving pulley wall half 81 so as to cause it to moveaway from the fixed clutch cover 80 laterally toward the fixed innerdriving pulley wall half 77.

122. As shown in FIG. 17, the movable driving pulley wall half 81 closestoward the fixed pulley wall half 77 in response to the force exerted bythe outwardly moving weights 82. The V-belt 64 is thus squeezed betweenthe movable driving pulley wall 81 and the fixed driving pulley wallhalf 77 so as to move outwardly to the outer circumferential edge of thedriving pulley 63 as further shown in FIG. 17.

123. The net effect of the movement of the V-belt 64 to the outercircumferential edge of the driving pulley 63 is to cause the V-belt 64to move inward in relation to the rear-driven pulley 62. Thus, theoutward movement of the V-belt 64 within the driving pulley 63 forcesthe V-belt 64 toward the center of the driven pulley 62 so as tocompress the tension springs 76.

124. As the motor RPM increases to approximately 50% of full RPM, thepulley halves 81 and 77 begin to grip the V-belt 64 and start theelectric bike moving forward. Before the V-belt 64 can move inwardbetween the rear pulley halves 74 and 72 as shown in FIG. 15, thecentrifugal force pushing the driving pulley halves 77 and 81 togethermust be greater than the resistance of the rear-driven pulley tensionsprings 76 so as to change the front to rear pulley drive ratio.

125. The tension of the rear pulley springs 76 are tuned to the clutchweights 82 so as to start clutch engagement at 50% of full RPM. As themotor RPM exceeds 70% of full RPM, the drive ratio begins to change andat 90% of full RPM the drive ratio is at its top speed ratio. The fullRPM position of the driving pulley 63 is shown in FIG. 17.

126. The advantage of the variable ratio V-belt drive system with tunedcentrifugal clutch as shown and described herein is that it managesitself (no shifting of gears). This drive system changes the drive ratio(relationship of motor RPM to drive wheel RPM) as a result of increasein motor RPM.

127. Another embodiment of this invention is shown in FIGS. 18, 19, andin the schematic circuit diagram of FIG. 23.

128. As specifically shown in FIG. 18, the rear wheel powered electricbicycle 20 is provided with three batteries 32, 33 and 33 arespectively, instead of two batteries as shown and described in FIG. 2.As specifically shown in FIG. 19, the front wheel powered electricbicycle 54 is also provided with three batteries, 32, 33 and 33 a.

129. It is obvious that the use of three batteries substantiallyincreases the operating range of the electric bicycles. In addition, theuse of three batteries enables the use of a more powerful motor becausethe use of three batteries provides 50% more battery capacity.

130. Another embodiment of this invention is a regenerating wheel rotorassembly 83 which is selectively mounted on the front wheel 22. Theregenerating wheel rotor assembly 83 is adapted to recharge thebatteries while braking, as needed, while the electric bicycle is inmotion.

131. As shown in the left side schematic view of FIG. 20, theregenerating wheel rotor assembly 83 includes a rotor 84 which isfixedly attached to the wheel 22 so as to rotate therewith. The rotor 84is provided with a series of spaced-apart permanent magnets 85permanently mounted along the outer perimeter thereof. A U-shapedarcuate generating coil holder 86 is selectively mounted on the bicyclewheel yoke strut member 87 so as to selectively position the coil holder86 in a bracketing free operative engagement with the outer peripheraledge of the rotor 84. The arcuate generating coil holder 86 is providedwith a series of fixedly positioned spaced-apart generating coils 88 oneach leg of the U-shaped holder 86. The fixed generating coils 88 are inselective spaced-apart operative register with the fixed permanentmagnets 85 provided around the outer peripheral edge of the rotor 84.

132. As the rotor 84 rotates with the wheel, the outer peripheral edgeportion thereof passes through the U-shaped arcuate generating coilholder 86 so that the magnets 85 pass between the generating electricalcoils 88 so as to induce a voltage and current into the generating coils88.

133. The front schematic view of FIG. 21 further shows theinterrelationship of the various components of the regenerating wheelrotor assembly 83 shown in FIG. 20.

134. As further shown in FIG. 20 and in the cross-sectional schematicview of FIG. 22 taken on line 22-22 of FIG. 20, an electrical cableassembly 88 a collects and carries the induced voltage and current tothe hand brake actuated switches 89 provided on the handle bar 24. Thisfurther is shown in circuit diagram of FIG. 23. By use of switches 89incorporated into the hand brake levers, the voltage and current fromthe generating coils is incorporated into the battery circuit as shownin FIG. 23 so as to selectively recharge the batteries while the bicycleis braking.

135. As shown in the schematic side view of FIG. 24, a semi-flexibleaerodynamic fairing assembly 90 is provided for selective mounting onthe electric bicycle. The aerodynamic fairing 90 is comprised of aflexible semi-rigid plastic or plexiglas sheet 91 which is mounted onsupport frame assembly 92.

136. As shown in the schematic front view of FIG. 25, the aerodynamicfairing surface 91 is fixedly mounted on the support frame assembly 92.The support frame 92 is comprised of lightweight horizontal supportstruts 93 and 94, respectively, which fixedly engage the diagonalsupport members that engage the plastic fairing surface. The diagonallyoriented support struts 95 and 96 are adapted to supportably engage andmaintain the fairing surface 91 in its curved aerodynamic fairingposition.

137. As shown in the schematic top view of FIG. 26, the flexiblesemi-rigid plastic sheet 91 is wrapped around the support frame assembly92. The semi-rigid flexible sheet 91 is fixedly maintained in itswrap-around position by being secured to the support members 95 and 96,respectively as shown.

138. As shown in the schematic front view of FIG. 27, the aerodynamicfairing assembly 90 is shown in its operative use position mounted onthe electric bicycle.

139. As shown in the schematic partial side view of FIG. 28, theaerodynamic fairing assembly 90 is shown in its operative use positionon the electric bicycle.

140. As shown in the schematic partial top view of FIG. 29, theaerodynamic fairing assembly 90 is mounted on the electric bicycle. Thehorizontally oriented lower support strut 94 is positioned so as to restupon the upper portion of the fork assembly 97.

141. As shown in the schematic partial side view of FIG. 30, thesteering post assembly 98 is provided with an upwardly and forwardlyextending goose-neck extension 99 which is adapted to engage the handlebar 24. A rearwardly extending support plate 100 is fixedly mounted onthe horizontal top of the steering post 98 so as to supportably fixedlyengage the upper fairing support strut 93 of the aerodynamic supportframe 92 therebelow.

142. As shown in the partial schematic cross-sectional view of FIG. 31,the flexible plastic surface 91 is fixedly attached to the supportmembers 95 and 96, respectively, by use of nut and bolt members 101 and102. FIG. 32 shows an alternate means of attachment by use of a selectedadhesive material 103.

143. Another embodiment of the electric bicycle assembly includes amechanically actuated multi-stage power control switch assembly so as toselectively provide a start circuit and two or more power control levelsas desired. This mechanically actuated power control switch assembly isshown in FIG. 33 which is significantly different than theelectronically controlled circuit shown in FIG. 23.

144. As will be hereinafter described, the mechanically actuated powercontrol switch assembly 105 in its single power control embodimentreplaces two solenoids and a one-time delay relay with resultant savingsin manufacturing costs due to the use of a simpler structure.

145. Further, in its various multi-stage control switch embodimentsadditional costs are avoided with an enhanced versatility in use.

146. Thus, this simplicity results in added savings in the manufactureof such mechanical control systems.

147. Further, additional savings are achieved in its operational usewhich are brought about by less battery drain in the operation of themechanical control systems as opposed to the previously describedelectronic circuit control systems which involve solenoids and timedelay relays.

148. Thus the use of the mechanical switch assembly provides a moreversatile multiple-stage power level control or multiple-voltageselection control system at a lower cost in manufacture and greaterrange through less drain on the batteries.

149. More specifically, the schematic diagram of FIG. 33 shows themechanically actuated, multi-stage power control switch assembly 105.The 12-volt batteries 106, 107 and 108 are operationally connected tothe drive motor 109.

150. The multi-stage power control switch assembly 105 is comprised of acontrol closure contact support member 110 which is spring loaded by thespring 111. The contact support member 110 is actuated by a throttlecontrol actuating cable 112 so as to selectively move the closurecontact member 113 into operational engagement with each circuitbeginning with the start circuit 114 in response to actuation of thethrottle (not shown) and the throttle control cable 112 attached. Thestart circuit 114 may be selectively provided with an induction coil115, if needed. After the bicycle has started, the throttle is actuatedto move the closure contact member 113 upwardly into closure with thelow power circuit 116. As the bicycle increases its speed, the throttlecan be actuated so as to move the closure contact member 113 intoclosure with the high power circuit 117 as desired. As shown, the30-volt power level is achieved through use of a center tap 118 onbattery 108. Great versatility in power levels can be achieved byproviding additional battery taps 119 and 120, respectively, as desired.

151. It is understood that the configuration of the closure contactmember 113 can be changed as desired to achieve a more efficient shapeso as to facilitate the manufacture and assembly of the overall controlswitch assembly 105.

152. It is also within the scope of this invention that the multi-speedrear wheel hub assembly also be configured to constitute a coastermulti-speed rear hub drive or a direct geared rear hub drive.

153. The advantage of having a coaster multi-speed rear hub drive isthat when the start-run button is released, the bike continues to coastfor extended distances while consuming no power or making no sound.

154. The advantage of having a direct geared rear hub is that when thestart run button is released, the gear chain and clutch drive assemblycontinues to turn and the motor continues to spin and can be used togenerate electricity back into the batteries. it is within the scope ofthe invention to design the hub to have the capability of selectivelychoosing the coaster or solid gear feature.

155. In addition, the use of the jell cell batteries increases the powerstorage capacity by 15 to 20 percent over conventional lead acidbatteries thereby extending range by similar amounts.

156. Further, it would be possible to use nickel-cadmium batteries.Nickel cadmium batteries carry approximately twice the electricalstorage capacity per pound than the storage capacity of lead acidbatteries thereby producing approximately twice the operating range ofthe vehicle.

157. Further, presently there are several other types of batteries indevelopment that would produce as much as four times the power per poundas conventional lead acid batteries thereby creating an operating rangeas much as four times that of lead acid. It is within the scope of thisinvention to use such batteries as they are developed.

158. In summary, the electric bicycle assembly is provided with abicycle frame having a front wheel and a rear wheel rotatably mountedthereon. A steering assembly is provided on the frame in operativeengagement with the front wheel.

159. A standard multi-speed rear wheel hub assembly is provided inassociation with the rear wheel.

160. A tuned centrifugal slip clutch is provided in operative engagementwith the rear wheel hub assembly.

161. A lightweight, high performance DC electric drive motor is providedon the frame in operative engagement with the tuned centrifugal slipclutch so as to selectively drive the rear wheel.

162. A DC battery assembly is provided on the frame in operativeengagement with the DC electric drive motor so as to power the electricbicycle assembly.

163. A two-stage start-run control circuitry assembly is provided inoperative engagement with the DC battery assembly.

164. A start-run control button is provided on the steering assembly inoperative engagement with the two-stage start-run control circuitryassembly so as to selectively drive the electric bicycle assembly.

165. In this embodiment of the electric bicycle assembly, the DC batteryassembly is a 24-volt system.

166. In this embodiment of the electric bicycle assembly, the DC batteryassembly is a 36-volt system.

167. In this embodiment of the electric bicycle assembly, the DC batteryassembly is provided with a battery charger assembly adapted to beplugged into a 110-volt outlet.

168. In this embodiment of the electric bicycle assembly, the DC batteryassembly is provided with a solar panel battery charger assembly.

169. In yet another embodiment of the electric bicycle assembly, abicycle frame is provided which has a front wheel and a rear wheelrotatably mounted thereon. A steering assembly is provided on the framein operative engagement with the front wheel. A standard multi-speedfront wheel hub is provided on the front wheel. A tuned centrifugal slipclutch assembly is provided in operative engagement with the front wheelhub assembly.

170. A lightweight, high performance DC electric drive motor is providedon the frame in operative engagement with the tuned centrifugal slipclutch so as to selectively drive the front wheel. A DC battery assemblyis provided on the frame in operative engagement with the DC electricdrive motor so as to selectively power the electric bicycle assembly. Atwo-stage start-run control circuitry assembly is provided in operativeengagement in the DC battery assembly. A start-run control button isprovided on the steering assembly in operative engagement with thetwo-stage start-run control circuitry assembly so as to selectivelydrive the electric bicycle assembly.

171. In this embodiment of the electric bicycle assembly, the batteryassembly comprises a 24-volt system.

172. In this embodiment of the electric bicycle assembly, the batteryassembly comprises a 36-volt system.

173. In this embodiment of the electric bicycle assembly, the batteryassembly is provided with a battery charger assembly which is adapted tobe plugged into a 110-volt outlet.

174. In another embodiment of the electric bicycle assembly, the batteryassembly is provided with a solar panel battery charger assembly.

175. A tuned centrifugal slip clutch assembly adapted for use with anelectric vehicle is provided with a battery powered D.C. drive motorhaving a motor drive shaft and at least one bicycle wheel provided witha multi-speed drive hub.

176. An outer clutch shell housing is concentrically freely mounted on amotor drive shaft. The clutch shell is provided in fixed operativeengagement with a drive chain adapted to selectively actuate the wheelmulti-speed hub operatively connected thereto.

177. An internal tuned centrifugal slip clutch housing assembly isprovided within the outer clutch shell housing. The tuned centrifugalslip clutch housing assembly is fixedly keyed to the motor drive shaftso as to selectively rotatably spin therewith. The internal tunedcentrifugal slip clutch assembly housing is provided with internallymounted co-acting weights mounted on an adjustable retainer tensionspring which can be selectively tuned so as to vary the tension exertedon the weights. The weights are adapted to respond outwardly to thecentrifugal force exerted by the spinning of the rotating motor shaft soas to selectively overcome the tension spring to engage the innersurface of the clutch shell to create a direct drive between drive motorand the drive chain.

178. A variable ratio V-belt drive assembly is provided for use with anelectric vehicle which is provided with a battery powered DC drive motorhaving a motor drive shaft in operative engagement therewith.

179. The variable ratio V-belt drive assembly is provided with a forwarddriving pulley assembly having an inner pulley wall half adapted forfixed attachment to an electric motor drive shaft so as to beselectively rotatable therewith but not laterally movable with respectthereto. The forward driving pulley assembly is provided with an outerpulley wall half which is adapted to be keyed to the electric motordrive shaft so as to be rotatable therewith. The outer pulley wall halfis in operative register with the inner pulley wall half so as to beselectively movable toward and away therefrom.

180. An outer driving pulley clutch cover is adapted for fixedengagement with the electric motor drive shaft so as to be rotatabletherewith. The outer driving pulley clutch cover is provided with aplurality of cover clutch weight receiving slots in operative registerwith corresponding outer pulley wall half clutch weight receiving slotsprovided on the outer surface of the outer pulley wall half.

181. Centrifugal clutch weights are provided in operative engagementwith the cover weight receiving slots and the corresponding outer pulleywall half weight receiving slots. The centrifugal clutch weights areselectively movable outwardly within the corresponding slots so as toselectively move the outward pulley wall half toward and away from thefixed driving inner pulley wall half in response to the centrifugalforce exerted on the centrifugal clutch weights.

182. A rear driven pulley assembly is provided which is adapted forselective operational engagement with a rear wheel axle and hubassembly. The rear driven pulley assembly is positioned in spaced-apartaligned operational longitudinal registry with the forward drivingpulley assembly. The rear-driven pulley assembly is provided with aninner-driven pulley wall half adapted for fixed engagement with a rearwheel hub. The rear-driven pulley assembly is provided with a springbiased outer-driven pulley wall half in operative register with theinner-driven pulley wall half so as to be selectively rotatabletherewith. The spring biased outer-driven pulley wall half is adapted tobe selectively movable laterally away from the inner-driven pulley wallhalf when actuated by the forward driving pulley wall assembly.

183. A V-belt is provided in selective operative engagement with theforward driving pulley assembly and the rear-driven pulley assembly soas to selectively vary the driving ratio when the electric vehicle isactuated.

184. A battery regenerating wheel rotor assembly is provided for usewith electric battery powered wheeled vehicles so as to selectivelyre-charge the vehicle batteries while the vehicle is in operationalmotion while braking.

185. The battery regenerating wheel rotor assembly comprises a circularwheel rotor fixedly mounted on a selected wheel of an electrical batterypowered wheeled vehicle so as to rotate therewith when the vehicle is inmotion. The circular wheel rotor is provided with a plurality ofspaced-apart permanent magnets along the outer peripheral edge thereof.

186. A U-shaped arcuate generating coil holder having a plurality ofspaced-apart generating coils provided on each leg of the coil holder.The generating coil holder is selectively positioned in operativeengagement relative to the rotor so as to bracket the outer peripheraledge of the rotor so as to position the generating coils in operationalspaced-apart register with the permanent magnets so as to selectivelycreate an electrical current when the rotor is rotating while theelectric vehicle is braking.

187. Electrical conveying cable means selectively connected to thegenerating coils so as to convey the generated electricity to thevehicle batteries so as to charge the batteries while the electricalvehicle is in motion.

188. The electric bicycle assembly is provided with a two-stagestart-run control circuitry assembly which comprises a start circuit, alow power circuit and a high power circuit adapted to selectivelydeliver variable power from the battery source means to the drive motor.A selectively adjustable variable time delay relay is provided which isadapted to sequentially close the start circuit, the low power circuitand the high power circuit so as to deliver power to the drive motor asrequired.

189. A mechanically actuated multi-stage power control switch assemblyis provided for use with electric battery powered vehicle so as toprovide selective variable power to the vehicle drive motor. The drivemotor is operatively connected by circuitry means to a battery powersource means so as to selectively drive the drive motor. The circuitrymeans comprises a start circuit, a low power circuit and a high powercircuit adapted to selectively deliver variable power from the batterysource means to the dirve motor.

190. A mechanically actuated multi-stage power control switch assemblyis provided with a spring biased contact member. The contact member isactuated by a throttle cable so as to selectively sequentially close thestart circuit, the low power circuit and the high power circuit so as todeliver power to the drive motor as required.

191. Various other modifications of the invention may be made withoutdeparting from the principle thereof. Each of the modifications is to beconsidered as included in the hereinafter appended claims, unless theseclaims, by their language, expressly provide otherwise.

I claim:
 1. In an electric bicycle assembly comprising: a bicycle frame,said frame having a front wheel and a rear wheel rotatably mountedthereon; a steering assembly provided on said frame in operativeengagement with said front wheel; a standard multi-speed rear wheel hubassembly provided on said rear wheel; a tuned centrifugal slip clutchprovided in operative engagement with said rear wheel hub assembly; alightweight, high performance DC electric drive motor provided on saidframe in operative engagement with said tuned centrifugal slip clutch soas to selectively drive said rear wheel; a DC battery assembly providedon said frame in operative engagement with said DC electric drive motorso as to power said electric bicycle assembly; a two-stage start-runcontrol circuitry assembly in operative engagement with said DC batteryassembly; and a start-run control button provided on said steeringassembly in operative engagement with said two-stage start-run controlcircuitry assembly so as to selectively drive said electric bicycleassembly.
 2. In the electric bicycle assembly of claim 1 wherein thesaid battery assembly comprises a 24-volt system.
 3. In the electricbicycle assembly of claim 1 , wherein the said battery assemblycomprises a 36-volt system.
 4. In the electric bicycle assembly of claim1 , wherein the said battery assembly is provided with a battery chargerassembly adapted to be plugged into a 110-volt outlet.
 5. In theelectric bicycle assembly of claim 1 , wherein the said battery assemblyis provided with a solar panel battery charger assembly.
 6. In theelectric bicycle assembly of claim 1 wherein said steering assembly isprovided with an aerodynamic fairing assembly in operative engagementtherewith, said aerodynamic fairing assembly comprising: a flexiblesemi-rigid plastic sheet which is fixedly mounted on a support frameassembly, said support frame assembly selectively mounted on saidsteering assembly so as to aerodynamically protect said front wheelprovided on said bicycle frame.
 7. In an electric bicycle assemblycomprising: a bicycle frame, said frame having a front wheel and a rearwheel rotatably mounted thereon; a steering assembly provided on saidframe in operative engagement with said front wheel; a standardmulti-speed front wheel hub assembly provided on said front wheel; atuned centrifugal slip clutch provided in operative engagement with saidfront wheel hub assembly; a lightweight, high performance DC electricdrive motor provided on said frame in operative engagement with saidtuned centrifugal slip clutch so as to selectively drive said frontwheel; a DC battery assembly provided on said frame in operativeengagement with said DC electric drive motor so as to selectively powersaid electric bicycle assembly; a two-stage start-run control circuitryassembly in operative engagement in said DC battery assembly; and astart-run control button provided on said steering assembly in operativeengagement with said two-stage start-run control circuitry assembly soas to selectively drive said electric bicycle assembly.
 8. In theelectric bicycle assembly of claim 7 wherein the said battery assemblycomprises a 24-volt system.
 9. In the electric bicycle assembly of claim7 , wherein the said battery assembly comprises a 36-volt system.
 10. Inthe electric bicycle assembly of claim 7 , wherein the said batteryassembly is provided with a battery charger assembly adapted to beplugged into a 110-volt outlet.
 11. In the electric bicycle assembly ofclaim 7 , wherein the said battery assembly is provided with a solarpanel battery charger assembly.
 12. In a tuned centrifugal slip clutchassembly for use with an electric vehicle provided with a batterypowered D.C. drive motor having a motor drive shaft and at lest onewheel provided with a multi-speed drive hub, the combination comprising:an outer clutch shell housing concentrically freely mounted on a motordrive shaft, said clutch shell in fixed operative engagement with adrive chain adapted to selectively actuate a wheel multi-speed huboperatively connected thereto; an internal tuned centrifugal slip clutchhousing assembly provided within said outer clutch shell housing, saidtuned centrifugal slip clutch housing assembly fixedly keyed to themotor drive shaft so as to selectively rotatably spin therewith, saidinternal tuned centrifugal slip clutch assembly housing provided withinternally mounted co-acting weights mounted on an adjustable retainertension spring which can be selectively tuned so as to vary the tensionexerted on said weights, said weights adapted to respond outwardly tothe centrifugal force exerted by the spinning of the rotating motorshaft so as to selectively overcome the tension spring to engage theinner surface of the clutch shell to create a direct drive between drivemotor and the drive chain.
 13. In a variable ratio V-belt drive assemblyfor use with an electric vehicle provided with a battery powered DCdrive motor having a motor drive shaft in operative engagementtherewith, the combination comprising: a forward driving pulley assemblyhaving an inner pulley wall half adapted for fixed attachment to anelectric motor drive shaft so as to be selectively rotatable therewithbut not laterally movable with respect thereto, said forward drivingpulley assembly having an outer pulley wall half adapted to be keyed toan electric motor drive shaft so as to be rotatable therewith, saidouter pulley wall half in operative register with said inner pulley wallhalf so as to be selectively movable toward and away therefrom; an outerdriving pulley clutch cover adapted for fixed engagement with anelectric motor drive shaft so as to be rotatable therewith, said outerdriving pulley clutch cover having a plurality of cover clutch weightreceiving slots in operative register with corresponding outer pulleywall half clutch weight receiving slots provided on the outer surface ofthe outer pulley wall half; centrifugal clutch weights provided inoperative engagement with said cover weight receiving slots and saidcorresponding outer pulley wall half weight receiving slots, saidcentrifugal clutch weight selectively movable outwardly within saidcorresponding slots so as to selectively move said outward pulley wallhalf toward and away from said fixed driving inner pulley wall half inresponse to the centrifugal force exerted on the centrifugal clutchweights; a rear driven pulley assembly adapted for selective operationalengagement with a rear wheel axle and hub assembly, said rear drivenpulley assembly positioned in spaced-apart aligned operationallongitudinal registry with said forward driving pulley assembly, saidrear-driven pulley having an inner-driven pulley wall half adapted forfixed engagement with a rear wheel hub, said rear-driven pulley assemblyhaving a spring biased outer-driven pulley wall half in operativeregister with said inner-driven pulley wall half so as to be selectivelyrotatable therewith, said spring biased outer-driven pulley wall halfadapted to be selectively movable laterally away from said inner-drivenpulley wall half when actuated by said forward driving pulley wallassembly; and a V-belt in selective operative engagement with saidforward driving pulley assembly and said rear-driven pulley assembly soas to selectively vary the driving ratio when the electric vehicle isactuated.
 14. In a battery regenerating wheel rotor assembly for usewith electric battery powered wheeled vehicles so as to selectivelyre-charge the vehicle batteries while the vehicle is in operationalmotion while braking, the combination comprising: a circular wheel rotorfixedly mounted on a selected wheel of an electrical battery poweredwheeled vehicle so as to rotate therewith when the vehicle is in motion,said circular wheel rotor provided with a plurality of spaced-apartpermanent magnets along the outer peripheral edge thereof; a U-shapedarcuate generating coil holder having a plurality of spaced-apartgenerating coils provided on each leg of said coil holder, saidgenerating coil holder selectively positioned relative to said rotor soas to bracket the outer peripheral edge of said rotor so as to positionsaid generating coils in operational spaced-apart register with saidpermanent magnets so as to selectively create an electrical current whensaid rotor is rotating while the electric vehicle is braking; andelectrical conveying cable means selectively connected to saidgenerating coils so as to convey the generated electricity to thevehicle batteries so as to charge the batteries while the electricalvehicle is in motion.
 15. In the electric bicycle assembly of claim 1wherein said two-stage start-run control circuitry assembly comprises astart circuit, a low power circuit and a high power circuit adapted toselectively deliver variable power from said battery source means tosaid drive motor; and a selectively adjustable variable time delay relayadapted to sequentially close said start circuit, said low power circuitand said high power circuit so as to deliver power to said drive motoras required.
 16. In a mechanically actuated multi-stage power controlswitch assembly for use with electric battery powered vehicle so as toprovide selective variable power to the vehicle drive motor, thecombination comprising: a drive motor, said drive motor operativelyconnected by circuitry means to a battery power source means so as toselectively drive said drive motor, said circuitry means comprising astart circuit, a low power circuit and a high power circuit adapted toselectively deliver variable power from said battery source means tosaid drive motor; and a mechanically actuated multi stage power controlswitch assembly, said control switch assembly provided with a springbiased contact member, said contact member actuated by a throttle cableso as to selectively sequentially close said start circuit, said lowpower circuit and said high power circuit so as to deliver power to saiddrive motor as required.